ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ Languages: Catalyst(s)
Definition:
A catalyst is substance which increases the rate of a chemical reaction without itself being used up in the reaction.
Source:
Science@NASA
NASA neurolab Glossary 
ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ | 
